88 SILVA OF NORTH AMERICA. BIGNONIACE. 
mental tree was soon recognized, and for one hundred and fifty years it has been planted in the parks 
and gardens of all temperate countries, which it decorates in early summer with its abundant clusters 
of showy flowers.! 
Catalpa Catalpa is hardy in the United States as far north as eastern New England, where the 
ends of the branches, however, are often killed in winter, and young plants are sometimes injured, and 
in central and western Europe. 
1 A dwarf bushy form of Catalpa Catalpa of unknown origin, duced flowers. A seedling variety of Catalpa with yellow leaves is 
with spreading stems three or four feet tall, is common in gardens, also occasionally planted. 
under the name of Catalpa Bungei. It is not known to have pro- 
EXPLANATION OF THE PLATES. 
Pruate CCLX XXVIII. Caraupa CATALPA. 
. The end of a flowering branch, natural size. 
. Diagram of a flower. 
. A corolla displayed, natural size. 
. Stamens, front and rear views, slightly enlarged. 
. Vertical section of an ovary, enlarged. 
QO oF © dD 
. An ovule, much magnified. 
Pirate CCLXXXIX. Caratpa CATALpPa. 
. A fruiting branch, natural size. 
. The end of a fruit, one of the valves removed, natural size. 
A seed, natural size. 
. Vertical section of a seed, natural size. 
. An embryo, natural size. 
On Pp Wd 
. A winter brancblet, natural size. 
